IT security and control firm Sophos has published the latest report into the 'Dirty Dozen' spam-relaying countries, covering the third quarter of 2010.
Since the second quarter this year, the spam output from the United States has increased significantly from 15.2% to 18.6% of global spam, making the country responsible for nearly one in five junk emails, and meaning that the USA contributes nearly 2.5 times more spam than the next worse offender, India.
The top 12 spam relaying countries for July to September 2010 are as follows—
1. United States – 18.6%
2. India – 7.6%
3. Brazil – 5.7%